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Heat storage tank for heat pumps
Daněk, Tomáš ; Forman, Matěj (referee) ; Hejčík, Jiří (advisor)
The goal is to design a storage tank to the heat pumps air to water. The first part describes how a heat pump works and why it is advantageous to use the tank. Another section focuses on ways to accumulation of heat. Established a program that simulates the behavior of the heat pump system with storage tank, described how this program works and is designed tank size for a given heat pump. The last chapters deal with the calculation of minimum area of heat flow exchanger and the proposal inlet valve for improving the thermal stratification of the tank.
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Effect of orientation on solar systems performance
Daněk, Tomáš ; Weismanová, Júlia (referee) ; Jaroš, Michal (advisor)
The work explains the influence of orientation and inclination on the performance of solarcollector. The first part shows how the formation of the solar energy and how it gets onEarth and in what form we are able to capture it. In the second part of the work focuses on the basic parameters of the solar collector and method of calculating theperformance and efficiency. The next section describes the most common types of solarcollectors and their field of application. In conclusion the results of the calculation andevaluation of the influence and orientation angle on the performance of a particular type of solar collector.
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Analysis of General Polygon Boolean Operation Algorithms
Daněk, Tomáš ; Zemčík, Pavel (referee) ; Beran, Vítězslav (advisor)
This thesis deals with general polygon boolean operation algorithms. Boolean operations are e.g. intersection, union or difference. A general polygon can be e.g. a selfinterecting polygon with inner hole. Clipping of polygons against a rectangular window is probably the most familiar boolean operation on polygons. At first, basic definitions are listed. Then the principles of a selected set of boolean operation algorithms are reviewed. Finally, a complex comparison of the algorithms is undertaken. Performance as well as the ability to handle degenerate cases are tested. The output of this thesis is an overall evaluation of algorithm properties and a dynamic library that contains the implementation of all of the tested algorithms.
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Bird Appearances and Similarities
Figura, Roman ; Komárek, Stanislav (advisor) ; Daněk, Tomáš (referee) ; Jaroš, Filip (referee)
The presented work deals with a striking, yet usually neglected phenomenon by researchers, the similarity between the forms of different (closely unrelated) bird taxa. It mainly concerns visual signs of the body surface, the work also deals with other signs, including behavioral ones. The thesis demonstrates that these are not a few curious similarities, but a truly robust phenomenon, which apparently cannot be fully explained from a unifying point of view. Only some characters, which the work deals with, help their bearers to crypsis, aposematism or mimesis. In many other cases, their function is unknown. They can carry different functions in the life of their bearers, but it is often not possible to determine a single cause of their occurrence. In terms of the information contained, the work belongs to the largest works dealing with this topic known to the author.
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Web App for Q-Sorting
Daněk, Tomáš ; Bartl, Vojtěch (referee) ; Herout, Adam (advisor)
The aim of my bachelor's thesis was to become familiar with the Q-methodology and create a web application for conducting research according to this method. The work includes a complete report on the technologies used and the overall implementation of the web application. I focused mainly on the user interface and ease of handling the application for the respondents. Thanks to this application, the client is able to carry out his own research and the respondents of the research are provided with user interface that is very intuitive and easy to use.
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Půdní fyzikální vlastnosti ve výbězích a na louce při chovu koní v ekologickém zemědělství
Daněk, Tomáš
This thesis describes the differences in soil properties within different land use. In the enviromentally freindly farming enterprise were chosen meadow, grazing and the paddock for horses. The enclosure is for daily use, grazing only in good weather and meadow is mowed twice a year for dried hay. Samples of soil were taken three times: in autumn 2013, in spring 2014 and in autumn 2014. Each sample was taken to 3 steel cylinders and also was taken simple soil sample. Samples were analyzed in laboratories. Analyses were performed on pH, granularity, humus, density and bulk density. The result was a determination of the differences in density and porosity of the soil and other parameters mentioned above. Soil in the horses' enclosure was the most compressed and meadow, on the other hand, at least. Humus content was again highest on the meadow, due to the grass cover, paddock was worn out and with no vegetation
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